Adapter member for conduit outlet boxes



May 20, 1930. J, PEARSON ET AL 1,759,365

ADAPTER MEMBER FOR CONDUIT OUTLET BOXES Filed Jan; 26, 1926 2 Sheets-Sheet 1 NV mm.

A TTORNEYS May 20, 1930. .J. PEARSON E AL I 1,759,355

ADAPTER MEMBER FOR CONDUIT OUTLET BOXES Filed Jan. 2a, 1926 z'sneets-sheet 2 A TTORNEYS Patented May 20, 1930 UNITED STATES PATENT OFFICE I JOHN T. PEARSON AND RAYMOND OLLEY, OF SYRACUSE, NEW YORK, ASSIG-NORS TO CRO'USE-HINDS COMPANY, OF SYRACUSE, NEW YORK, A CORPORATION OF NEW YORK ADAPTER MEMBER FOR CONDUIT OUTLET BOXES Application filed. January 26, 1926. Serial No. 83,820.

This invention has for its object a particularly simple and efiicient adapter for conduit outlet boxes by which covers or appliances adapted to be applied to the open sides. of

conduit outlet boxes of the type having internal lugs can be applied to conduit outlet boxes of the type unprovided with lugs and having the inner walls along their open sides unobstructed, and also whereby covers or appliances adapted to be secured to conduit outlet boxes of the second type can be applied to conduit outlet boxes of the first type, which adapting means is particularly simple and economical in construction and highly eflicient and durable in use.

The invention consists in the novel features and in the combinations and constructions hereinafter set forth and claimed.

In describing this invention reference is had to the accompanying drawings in which like characters represent corresponding parts in all the views.

Figure 1 is a longitudinal sectional view of a conduit outlet box of the first type provided with my adapting means for covers or appliances for boxes of the second type.

Figure 2 is a cross sectional View on line 2-2, Figure 1.

Figure 3 is a bottom plan view of the adapter seen in Figures 1 and 2.

Figure 4: is a view similar to Figure 1 of a conduit outlet box and adapting means by which the conduit outlet boxes of the second type are adapted to receive the covers or appliances for boxes of the first class.

Figure 5 is the sectional view on line 55, Fi ure 4.

Figure 6 is a bottom plan view of the adapter shown in Figures 4; and 5.

Figures 7 and 8 are plan views of the two types of boxes.

As will be understood by those skilled in the art, conduit outlet boxes, known to the trade as condulets, may be classified generally as two types. In one of these types the opening at the open side of the box is provided with internal lugs for receiving the fastening screws of ap liances or covers at tachable to such box. 11 the other of these classes the open side of the box is unprovided with lugs, and the inner walls-around, such open side are smooth and unobstructed and adapted to receive the fastening means of covers and appliances such as set forth in our Egatent No. 1,525,689, issued February 10,

This invention comprises an adapter member having openings in different sides conforming respectively to the openingsof the conduit outlet boxes of said types, and provided on one sidewith means securable to the open sideof the boxes of one of said two types, and having its opening on its other side formed to receive the fastening means of the covers of appliances attachable to boxes of the other of said two types.

1 designates the box of the type having an opening in one side and internal lugs 2 projecting into the opening for receiving the fastening screws of appliances or covers as 3, Figure 4, adapted to be secured to the open sides of such boxes provided with lugs.

- 4 is one adapter which is in the form of an oblong box open on different sides as its upper and lower sides or top and bottom, it being provided on its lower side with suitable means as lugs 5 corresponding to the lugs 2 l The other side of this adapter is smooth and unobstructed for receiving the fastening means of covers and appliances forboxes 7 of the second type, the form of which fastening means is shown in our patent before referred to.

This fastening means consists generally the inner face of the opposite wall of the box 7.

14 designates an adapter in the form of a box having openings on opposite sides thereof, the opening on one side being provided with fastening means similar to that described in our patent before referred to, consisting of a pair of nuts 15 coacting with fixed projections 16, to wedge laterally against shoulders 17, the nuts and shoulders being arranged to clamp against the innerfaces of opposite sides of the boxes of the type un provided with lugs, and thescrews for operating the nuts being operablethrough the upper or open side of the adapter box 142. The upper or open side of the adapter box is provided with lugs 18 formed with threaded holes 19 for receiving the fastening screws of covers or appliances adapted to fit openings of boxes of the first class, that is the type provided with lugs. 7

'Either form of adapter member a or 14 consists of a box having openings in opposite or different sides conforming to the cover openings of the types of boxes shown in Fig ures 7 and 8, and either form has internal lugs in one of said openings corresponding to the lugs of the box shown in Figure 7, and has itsother, side formed without lugs.

Obviously regardless of what type of boxes or type of covers or appliances a contractor may have, he can make use of them by select ing the proper adapting means so that with a small number of the adapters on hand, a contractor can readily'make use-of either kind of boxes or appliances or covers he may have on hand. Thus a contractor or dealer does not have to carry a largestock of both types 7 of boxes and covers, but can fill all require ments'with a small stock of each type and a small supply of adapters. V i

What we claim is I 1. An adapter member for attaching appliances for one of two types of conduit outlet boxes as specified to the other of said type, both of said types having oblong openings, said adapter having oblong openings in different sides thereofcorresponding to the oblon openings of the boxes, the adaptermem ber iaving means on one open side for attachment to the open sideof the boxes of one type in place of the appliancesforsuchftype, the

adapter member having'its other open side formed to receive the oblong appliancesfor' boxes of said other type.

2.'An adapter member pliances for one of two types of conduit outlet boxes as specified to the other of'said type, both types having oblong openings, one type having lugs extending into said open ing and the other type being unprovided' with lugs, the adapter member beingin the form of a box vhaving oblong openings' in different walls thereof corresponding to the oblong openings in the walls of the two types of for attachingap- 7 boxes, the adapter member being provided with internal lugs projectinginto the open ing in one of its sides and conforming to the lugs of one of the two types of boxes and the adapter member being unprovided with lugs in its other opening.

3. An adapter member for attaching appli- V ances for one of two types of conduit outlet ings and one of said types being provided with internal lugs inthe opcnings and the other being unprovided with such lugs, the adapter member being in the form of a box having oblong openings in different sides thereof conforming respectively to the openings of the boxes of said type,ethe adapter boxes to the other of said types, the boxes of r 7 both types being provided with oblong openbox havin means on one of. said sides for attachment to the boxes of one of said two types in place of the appliance adapted for that type, the opening on its other side be and having the inner walls along its'open side unobstructedfor receiving the fastening means of appliances mountable on such'unobstructed side, of an adapter member'having oblong openings 111 different sides thereof conforming respectively to the openings of the boxes of said types and provided with means on one side for securenient to the open sides of .theboxes of one of said types and having its opening on its other side formed to receive the fastening means of the appliances attachable to boxes of the other of said types. 1 V v In testimony whereof, we have hereunto signed our names, at Syracuse, in the county of Onondaga, and State of New York, this 7 7th day of January, 1926.

JOHN T. PEARSON RAYMOND HOLLEY. 

